'Game of Thrones' Debuts Season 2 Teaser Poster and New Featurette

The one-sheet gives a warning about an impending war, while the new sneak-peek video addresses the challenges the cast and crew face while filming the show in snowy Iceland.

"War is coming," so it's mentioned in a new teaser poster for "Game of Thrones" season 2. The ad is released to tide fans over the April 1 return of the medieval drama series, which will see some familiar faces and new characters battling it out to sit on the Iron Throne.

Additionally, HBO has debuted another production trailer of the acclaimed show. It shares behind the scenes of the filming in Iceland, where the cast and crew only have four and a half hours of sunlight to shoot in.

Meanwhile, in the spirit of Valentine's Day, some love-themed photos are posted on "Game of Thrones" Facebook page. They are actually pictures from season 1, but are now added with captions which reflect how love is shown in Westeros.

The new season of "Game of Thrones" will feature new cast members, including Stephen Dillane as Stannis Baratheon, Carice van Houten as Melisandre, Liam Cunningham as Davos Seaworth, Patrick Malahide as Balon Greyjoy, and Gwendoline Christie as Brienne of Tarth.